'\" te
.\" Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
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.TH LGRP_NLGRPS 3LGRP "Apr 16, 2003"
.SH NAME
lgrp_nlgrps \- get number of lgroups
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag \&.\|.\|.\fR ] \fIfile\fR\&.\|.\|. \fB-llgrp\fR [ \fIlibrary \&.\|.\|.\fR ]
#include <sys/lgrp_user.h>

\fBint\fR \fBlgrp_nlgrps\fR(\fBlgrp_cookie_t\fR \fIcookie\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBlgrp_nlgrps()\fR function takes a \fIcookie\fR representing a snapshot
of the lgroup hierarchy obtained from \fBlgrp_init\fR(3LGRP). It returns the
number of lgroups in the hierarchy where the number is always at least one.
.SH RETURN VALUES
.sp
.LP
Upon successful completion,\fB lgrp_nlgrps()\fR returns the number of lgroups
in the system. Otherwise, it returns \(mi1 and sets \fBerrno\fR to indicate the
error.
.SH ERRORS
.sp
.LP
The \fBlgrp_nlgrps()\fR function will fail if:
.sp
.ne 2
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 10n
The \fIcookie\fR is not valid.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Evolving
_
MT-Level	MT-Safe
.TE

.SH SEE ALSO
.sp
.LP
.BR lgrp_children (3LGRP),
.BR lgrp_init (3LGRP),
.BR lgrp_parents (3LGRP),
.BR liblgrp (3LIB),
.BR attributes (7)
